响应式
声明状态
更新状态
模板语法
最简模板
样式
DOM循环
点击事件
import { createSignal } from "solid-js";
export default function Counter() {
const [count, setCount] = createSignal(0);
function incrementCount() {
setCount(count() + 1);
}
return (
<>
<p>计数器: {count()}</p>
<button onClick={incrementCount}>+1</button>
</>
);
}
Aurelia 1
<template>
<p>计数器: ${count}</p>
<button click.trigger="incrementCount()">+1</button>
</template>
DOM引用
条件渲染
import { createSignal, Switch, Match } from "solid-js";
const TRAFFIC_LIGHTS = ["红灯", "黄灯", "绿灯"];
export default function TrafficLight() {
const [lightIndex, setLightIndex] = createSignal(0);
const light = () => TRAFFIC_LIGHTS[lightIndex()];
function nextLight() {
setLightIndex((lightIndex() + 1) % TRAFFIC_LIGHTS.length);
}
return (
<>
<button onClick={nextLight}>下一个灯</button>
<p>现在亮着的是: {light()}</p>
<p>
你应该
<Switch>
<Match when={light() === "红灯"}>
<span>停下</span>
</Match>
<Match when={light() === "黄灯"}>
<span>慢行</span>
</Match>
<Match when={light() === "绿灯"}>
<span>赶紧走</span>
</Match>
</Switch>
</p>
</>
);
}
Aurelia 1
<template>
<button click.trigger="nextLight()">下一个灯</button>
<p>现在亮着的是: ${light}</p>
<p>
你应该
<span if.bind="light === '红灯'">停下</span>
<span if.bind="light === '黄灯'">慢行</span>
<span if.bind="light === '绿灯'">赶紧走</span>
</p>
</template>
生命周期
组件加载时
组件卸载时
import { createSignal, onCleanup } from "solid-js";
export default function Time() {
const [time, setTime] = createSignal(new Date().toLocaleTimeString());
const timer = setInterval(() => {
setTime(new Date().toLocaleTimeString());
}, 1000);
onCleanup(() => clearInterval(timer));
return <p>当前时间: {time()}</p>;
}
Aurelia 1
<template>
<p>当前时间: ${time}</p>
</template>
组件组合
组件Props传参
import UserProfile from "./UserProfile.jsx";
export default function App() {
return (
<UserProfile
name="张三"
age={20}
favouriteColors={["green", "blue", "red"]}
isAvailable
/>
);
}
Aurelia 1
<template>
<require from="./user-profile"></require>
<user-profile
name.bind="name"
age.bind="age"
favourite-colors.bind="colors"
is-available.bind="available"
></user-profile>
</template>
向父组件emit事件
import { createSignal } from "solid-js";
import AnswerButton from "./AnswerButton.jsx";
export default function App() {
const [isHappy, setIsHappy] = createSignal(true);
function onAnswerNo() {
setIsHappy(false);
}
function onAnswerYes() {
setIsHappy(true);
}
return (
<>
<p>你快乐吗?</p>
<AnswerButton onYes={onAnswerYes} onNo={onAnswerNo} />
<p style={{ "font-size": "50px" }}>{isHappy() ? "😀" : "😥"}</p>
</>
);
}
Aurelia 1
<template>
<require from="./answer-button"></require>
<p>你快乐吗?</p>
<answer-button action-handler.call="handleAnswer(reply)"></answer-button>
<p style="font-size: 50px">${isHappy ? "😀" : "😥"}</p>
</template>
slot插槽
slot插槽内容
import FunnyButton from "./FunnyButton.jsx";
export default function App() {
return (
<>
<FunnyButton />
<FunnyButton>这是传到slot的内容!</FunnyButton>
</>
);
}
Aurelia 1
<template>
<require from="./funny-button"></require>
<funny-button></funny-button>
<funny-button>这是传到slot的内容!</funny-button>
</template>
上下文
import { createSignal } from "solid-js";
import { UserContext } from "./UserContext";
import UserProfile from "./UserProfile";
export default function App() {
const [user, setUser] = createSignal({
id: 1,
username: "abcdefg",
email: "[email protected]",
});
function updateUsername(newUsername) {
setUser({ ...user(), username: newUsername });
}
return (
<>
<h1>欢迎回来, {user().username}</h1>
<UserContext.Provider value={[user, updateUsername]}>
<UserProfile />
</UserContext.Provider>
</>
);
}
Aurelia 1
缺少代码片段 帮助我们改进 Component Party 
表单输入
输入框
import { createSignal } from "solid-js";
export default function InputHello() {
const [text, setText] = createSignal("你好世界");
function handleChange(event) {
setText(event.target.value);
}
return (
<>
<p>{text()}</p>
<input value={text()} onInput={handleChange} />
</>
);
}
Aurelia 1
<template>
<p>${text}</p>
<input value.bind="text" />
</template>
复选框
import { createSignal } from "solid-js";
export default function IsAvailable() {
const [isAvailable, setIsAvailable] = createSignal(false);
function handleChange() {
setIsAvailable((previousValue) => !previousValue);
}
return (
<>
<input
id="is-available"
type="checkbox"
checked={isAvailable()}
onChange={handleChange}
/>
<label for="is-available">这是一个checkbox</label>
</>
);
}
Aurelia 1
<template>
<input id="is-available" type="checkbox" checked.bind="isAvailable" />
<label for="is-available">这是一个checkbox</label>: ${isAvailable}
</template>
单选框
import { createSignal } from "solid-js";
export default function PickPill() {
const [picked, setPicked] = createSignal("red");
function handleChange(event) {
setPicked(event.target.value);
}
return (
<>
<div>你选择了: {picked()}</div>
<input
id="blue-pill"
checked={picked() === "blue"}
type="radio"
value="blue"
onChange={handleChange}
/>
<label for="blue-pill">蓝色</label>
<input
id="red-pill"
checked={picked() === "red"}
type="radio"
value="red"
onChange={handleChange}
/>
<label for="red-pill">红色</label>
</>
);
}
Aurelia 1
<template>
<div>你选择了: ${picked}</div>
<input id="blue-pill" checked.bind="picked" type="radio" value="blue" />
<label for="blue-pill">蓝色</label>
<input id="red-pill" checked.bind="picked" type="radio" value="red" />
<label for="red-pill">红色</label>
</template>
选择器
import { createSignal, For } from "solid-js";
const colors = [
{ id: 1, text: "红" },
{ id: 2, text: "蓝" },
{ id: 3, text: "绿" },
{ id: 4, text: "灰", isDisabled: true },
];
export default function ColorSelect() {
const [selectedColorId, setSelectedColorId] = createSignal(2);
function handleChange(event) {
setSelectedColorId(event.target.value);
}
return (
<select value={selectedColorId()} onChange={handleChange}>
<For each={colors}>
{(color) => (
<option value={color.id} disabled={color.isDisabled}>
{color.text}
</option>
)}
</For>
</select>
);
}
Aurelia 1
<template>
<select value.bind="selectedColorId">
<option value="">选择一个颜色</option>
<option
repeat.for="color of colors"
value.bind="color.id"
disabled.bind="color.isDisabled"
>
${color.text}
</option>
</select>
</template>
Web应用特性
渲染应用
<!doctype html>
<html>
<body>
<div id="app"></div>
<script type="module" src="./main.jsx"></script>
</body>
</html>
Aurelia 1
缺少代码片段 帮助我们改进 Component Party 
fetch获取数据
import { createResource, For, Switch, Match } from "solid-js";
async function fetchUsers() {
return (await fetch("https://randomuser.me/api/?results=3")).json();
}
export default function App() {
const [data] = createResource(fetchUsers);
const users = () => data()?.results;
return (
<Switch>
<Match when={data.loading}>
<p>正在获取用户信息……</p>
</Match>
<Match when={data.error}>
<p>获取用户信息出错</p>
</Match>
<Match when={users()}>
<ul>
<For each={users()}>
{(user) => (
<li>
<img src={user.picture.thumbnail} alt="user" />
<p>
{user.name.first} {user.name.last}
</p>
</li>
)}
</For>
</ul>
</Match>
</Switch>
);
}
Aurelia 1
<template>
<p if.bind="isLoading">正在获取用户信息……</p>
<p if.bind="error">获取用户信息出错</p>
<ul if.bind="users">
<li repeat.for="user of users">
<img src.bind="user.picture.thumbnail" alt="user" />
<p>${ user.name.first } ${ user.name.last }</p>
</li>
</ul>
</template>